"It's wonderful", Hingis told reporters at Wimbledon, where she is into the semi-finals of the mixed doubles.
Older sister Venus, 37, has reached this year's Wimbledon final.
Williams made her debut at Wimbledon in 1997, the same year three of the players she powered through to get to this year's final were born.
"I couldn't have asked for more, but I'll ask for a little more".
"She's still motivated to go for more and still has the hunger, which is also very surprising".
Dissecting the match and her tournament, there are definitely things she and her coach Wim Fissette - the two obviously are working well together judging by results - can improve on.
The 35-year-old Grand Slam champion was having none of it, taking to twitter to call out the comment. The previous of her seven majors came at the same place in 2008.
She defeated the defending champion Serena Williams in straight sets to triumph. Venus was diagnosed with an autoimmune disorder, Sjögren's syndrome, which causes fatigue and muscle pain.
Muguruza won the French Open past year, so she knows how to succeed on the big stage, but there is something about Centre Court at Wimbledon that elevates the pressure and the expectation. That win was Muguruza's only victory over Williams, however.
She was Australian Open runner-up in January to Serena, only to have her life thrown into turmoil last month when she was accidently involved in a auto crash in Florida that led to the death of an elderly man. Serena is off the tour for the rest of this year because she is pregnant. "I think not everybody can do that".
"I feel very focused", said Williams. "It's going to be, like, a historic final again". Only 23 players have ascended to the No.1 ranking since 1973.
Konta said she had been pleased with how she had handled the occasion against Williams.
"Serena did play her in a final", Venus said.
That came at 4-3 in the first set, when Federer was already up a break, and a forehand dumped into the net from Berdych was all that separated them in the tie-break. Muguruza has fired 30 percent unreturnable first serves and 12 percent unreturnable second serves.
"I think you have to build up, get some experience, get to the final, win a few more tournaments".
Williams wouldn't face another break point and, later, produced another impressive second serve - in the second set, at 103 miles per hour (166 kph), it went right at Konta, who jumped out of the way. I thought the crowd was so fair.
"I'm definitely in the position I want to be in", Venus said. "It's a lot of pressure". "I guess it's a nice club to be a part of, but I'm looking to keep getting better", she said. I did think of that.
On Saturday, she'll be playing for the Venus Rosewater Dish for the ninth time in her 20th Wimbledon appearance.
But the world No. 15 has rediscovered her mojo on grass and would climb into the top five if she wins the final today.
The American isn't just defying time and age with every match that she wins, she is also flouting the limitations of her own body.
Although initial reports indicated Williams was at fault, authorities later said that video evidence showed she had legally entered the intersection where the collision occurred.